Self-salting curd-mill



(No Model.)

G. D. POHL.

SELF SALTING GURD MILL.

UNITED STATES PATENT, OF ICE.

GEORGE D. POI-IL, OF AVA, NEV YORK.

SELF-SALTING CURD-MILL.

EPEGIFIGATION forming part of Letters Patent No. 349,405, dated September 21, 1886.

Application filed January 18,1886. Serial No. 188,856. (No model.)

To all whom, it may concern.-

Be it known that I, GEORGE D. Form, of Ava, in the county of Oneida, in the State of New York, have invented new and useful Improvementsin Self-Salting Ourd-Mills,of which the following, taken in connection with the accompanying drawings, is a full, clear, and .exact description.

This invention relates more particularly to the curd-mill for which Goswin Castle and I have jointly obtained Letters Patent of the United States, No. 227,228, dated May 8, 1883.

My present invention consists, first, in the employment, with the curd tearing or disintegrating rollers, of a combined auxiliary disintegrating and clearing roller arranged under the main disintegrating-rollers, to cast the curd from the latter, so as to prevent clogging, and at the same time further tear up and disintegrate the curd; and the invention also consists in an improved construction of the teeth of the curd tearing or disintegrating rollers, whereby the mill is rendered more efficient in its operation, all constructed and combined as hereinafter more fully described, and specifically set forth in the claims.

In the annexed drawings, Figure I is a side elevation of my improved curd-mill. Fig. II is a vertical transverse section on line as m, Fig. I. Fig. III is a vertical longitudinal section on line 3/ g Fig. II. Fig. IV is an en larged detached plan view of one of the teeth of one of the curd-disintegrating rollers. Fig. V is a perspective view of the same. Fig. VI is an enlarged detached plan view of one of the teeth of the companion disintegratingroller, and Fig. VII is a perspective view of the said tooth.

Similar letters of reference sponding parts.

A represents the main frame of the curdmill, adapted to be mounted on top of the vat B, containing the curd to be treated, said frame being formed at its front end with a hopper or chute, A, through which to introduce the curd into the mill. At the bottom of this chute is a roller, a, extended across the frame A and secured to a shaft which is journaled in suitable hearings on the sides of said frame, and provided with a hand-crank, d, by which to rotate said roller. This roller is armed indicate correwith teeth a, distributed over the peripheral face thereof. Said teeth are inclined forward, or in the direction in which the roller revolves, and are formed at their free ends with broad edges standing parallel with the axis of the roller, as best seen in Fig. VI of thedrawlngs. Back of and somewhat higher'than the roller (1, and parallel therewith, is another roller, b, of greater circumference, and this/roller b 1s armed with teeth It, the free ends of WlllCll are also inclined forward, or in the direction in which said roller turns; The free ends of said teeth are flattened in planes parallel to the axis of the roller, as represented in Fig. IV of the drawings, and from the back of these teeth, some distance from the free ends thereof, project spurs s, which are removably inclined and flattened in planes at right angles to the axis ofthe roller. The two rollers a and b are arranged in such positions in relation to each other as to cause the teeth of one roller to pass between those'of the other roller when said rollers are rotated. To the shaft of the roller a is rigidly attached a pinion, 1, which meshes in a gear-wheel, 2, secured to the shaft of the roller I). Said rollers are thus caused to rotate toward each other above their axis when the crank d is turned in the proper direction. The gear-wheel 2 is much larger than the pinion 1, and consequently the roller b revolves at a correspondingly less velocity than the roller (1.

The curd being introduced in the chute or hopper A, it descends to the roller (1, wh1ch in its rotation grasps, by its teeth u, the curd, the broad edges of said teeth tearing the curd asunder, and at the same time throwing the broken mass toward the roller I), where said mass is drawn down between the two rollers and subjected to the tearing action. of the teeth a, passing rapidly between the flattened teeth t. The spurs s, projecting from the back of the teeth t, divide the mass of curd at points midway between the teeth a u, and as the latter pass between the teeth it the divided portions of the mass are subdivided and torn into'small particles, and thus the curd is effectually disintegrated.

Under the disintegrating-rollers a b is the combined clearing andauxi liary disintegrating roller 0, armed with teeth, and arranged in such a position in relation to the rollers a b as to cause the teeth of the roller 0 to pass between the teeth a of the roller (1, and close to the roots of said teeth, and pass with their ends in proximity to the extremities of the teethtof the roller b, as shown in Fig. III of the drawings. A second gear, 3, attached to the shaft of the roller (1, engages a considerably smaller pinion, 4, on the shaft of the roller 0, and thus transmits rotary motion to the latter roller at a greatly-increased velocity. This rapidly-rotating toothed roller 0 casts the curd from the roller a, and thus prevents the clogging of said roller, and at the same time subjects the curd to a further disintegrating action. The roller 0 revolving with its upper portion from the roller a directly toward the front of the mill causes the curd to be thrown in that direction. The mill is shifted on top of the vat in the op posite direction. to carry the mill away from the disintegrated curd and bring it into a convenient position over the curd to be treated.

B represents the salti ng apparatus, consisting of a hopper, in which are arranged horizontally side by side two rollers, c e,journaled in bearin'gs in opposite sides of the base of the hopper, the bearings of one of the rollers being adjustable in their position to permit of setting the rollers in their requisite proximity to each other. A gear-wheel, 5, on the shal't of one of said rollers meshes in the gear-wheel 2 of the disintegrating-roller I), and thus partakes of rotary motion from the same. A pinion, 6, on the same shaft which carries the gearwheel 5, meshing into a larger pinion, 7, on the shaft of the companion roller 0, imparts a differential movement to the two rollers e 0, so as to produce a combined crushing and abrading action on the salt, which is introduced into the hopper and falls between the two rollers e e, which latter grind the salt, and from whence salt becomes curd. I

I do not claim, broadly, the

combination, i

with the disintegrating-rollers, of a clearingroller arranged underthe former, as I am aware the same is not new; but

IVhat I claim as new, and desire to secure by Letters Patent, is 1 1. In a curd mill, the roller 1), having the teeth t,provided with the rearwardly-inclined spur s, in combination with the toothed roller a, substantially as described and shown.

2. In a curd-mill, the roller b, having teeth 15, inclined forward at their free ends and flattened in planes parallel with the axis of the roller,in combination with the toothed roller a, substantially as set forth and shown.

3. In a curd-mill, the roller b, having'teeth t, inclined forward at their free ends and flattened in planes parallel with the axis of the roller, and rearwardly-inclined spurs 8, projecting from the teeth i, in combination with the toothed roller a, substantially as described and shown.

4. In a curd-mill, the roller a, having the teeth a, formed at their free ends with broad edges standing parallel with the axis of the roller, in combination with the toothed roller of two attesting witnesses, at Syracuse, in the county of Onondaga,in the State of New York, this 28th day of December, 1885.

GEORGE D. POHL. [L. s]

v\Vitnesses:

FREDERICK H. GIBBs, E. O. CANNON. 

